Formal Risk Assessments

Section 742 Section 742.915  Formal Risk Assessments A comprehensive site-specific risk assessment shall demonstrate that contaminants of concern at a site do not pose a significant risk to any human receptor.  All site-specific risk assessments shall be submitted to the Agency for review and approval. A submittal under this Section shall address the following factors: a)         Whether the risk assessment procedure used is nationally recognized and accepted including, but not limited to, those procedures incorporated by reference in Section 742.210; b)         Whether the site-specific data reflect actual site conditions; c)         The adequacy of the investigation of present and post-remediation exposure routes and risks to receptors identified at the site; d)         The appropriateness of the sampling and analysis; e)         The adequacy and appropriateness of toxicity information; f)         The extent of contamination; g)         Whether the calculations were accurately performed; h)         Similar-acting chemicals shall be specifically addressed.  At a minimum, the chemicals subject to this requirement are identified in Appendix A, Tables E and F; and i)          Proposals seeking to modify the target risk consistent with Section 742.900(d) shall address the following factors: 1)         the presence of sensitive populations; 2)         the number of receptors potentially impacted; 3)         the duration of risk at the differing target levels; and 4)         the characteristic of the chemicals of concern.